I want to test my airconsole game on a smartphone before publishing. The problem is, I can't connect it to the simulator.
If i try to connect (Chrome on Android) it says connecting, after a few seconds it shows the enter code screen but no input is possible. After about 30 seconds I get the message download the app for next time. (Screenshots attached)
Do you know where the problem is?
My files are hosted on a webserver, accessible from everywhere.
Kind regards
Make sure your screen.html and controller.html are accessible from all devices.
Let's assume you are running your local web server on http://192.168.0.2:8080/
Try to access http://192.168.0.2:8080/screen.html and http://192.168.0.2:8080/controller.html using a normal web browser on the device that doesn't work. It should display the screen/controller html.
If you can't access http://192.168.0.2:8080/controller.html from your phone, but from your computer, make sure you are in the same network and that your router does not have "Client Isolation" activated.
If you are testing with real smartphones, make sure you do not use http://localhost/ or http://127.0.0.1/, because localhost is not your computer on the phone but the phone itself!
If you are still unable to connect your phone, you can use the ngrok tool to forward your local url. See our Ngrok Unity Guide for how to do this in the Unity Engine: https://developers.airconsole.com/#!/guides/unity-ngrok
I am using expo-cli#3.0.10
This app works fine in client expo which installed in device
Ok I believe I found the core problem - DNS issue.
Your Android simulator cannot properly resolve the hostname using your current DNS for whichever OS you are on be it Mac OS, Windows or Linux.
Follow this link to set your DNS address to 8.8.8.8 or some other applicable DNS.
Once you set your DNS properly it should work.
Make sure that 8.8.8.8 is the first DNS address in the list(?) of DNS addresses so that your system will resolve hostnames using the Google DNS first.
Reposting the useful information from that link below,
Change the DNS address of your network to 8.8.8.8:
MacOSX:
Open "System Preferences"
Click on "Network"
Select the network which your computer is connected and click on "Advanced"
Select "DNS", Select the "+" button, type "8.8.8.8"
Select "Ok" and "Apply"
Windows & Linux:
https://developers.google.com/speed/public-dns/docs/using
After that close the emulator and start it again.
This case happened to me whenever I switch from a network to another without restarting my emulator.
The simplest way to solve this was to restart my emulator.
I hope it helps,
For my case, this error occurred because I changed from LAN to Wireless Internet connection while the project is building.
Solution: Close the Emulator and restart Android Studio. Run the project (either npm start or expo start) and this worked for me.
You need to start expo server first. Use expo start. Then run your project.
After starting your expo server re-start your project.
I created my project in react native by CLI:
_npm install -g create-react-native-app
_create-react-native-app AwesomeProject
_cd AwesomeProject
_npm start
Then I installed expo in my Android phone, and scanned a QR code on my computer screen.
However, my phone can't connect to project, and I don't know why. It just loads and fails. This is error message:
Could not load exp:// 192.168.56.1:19000. Network response timed out.
This is view error:
"Uncaught Error: java,not.SocketTimeoutException: faild to connect to/192.168.56.1 (port 19000) after 10000 ms.
I'm trying to fix it, but still can't get it working. My phone and my laptop are on the same network. What can I do now?
I had the same problem but solved by running expo start --tunnel
Select LOCAL instead of LAN.
I kicked myself when I fixed this.
I had the same issue, turns out my firewall was blocking my connection to the development server port (for me it was 19000). Solved it by disabling firewall.
Choose Tunnel Instead of LAN or Local in connection tab. This solved the issue for me.
Keep a look on this issue for the answer:
https://github.com/react-community/create-react-native-app/issues/60
Make sure that your device and computer are one same LAN/Wifi. It will work.
Also use LAN option.
check open port using
ufw status verbose
And if you don't see the port You are working on
for example 19000 => expo
try this
ufw allow 19000
I've had a similar problem on iOS - the project showed up in the Expo app but didn't want to connect.
Here's what I did:
Connect your PC to your device through USB cable
Download the newest xde from: https://github.com/expo/xde/releases
Install XDE, create a new project from the gui (do NOT use your old project from create-react-app, as it may also show up in XDE) and click the newly created (in XDE) project under "My Projects".
Now your project should show up in the Expo app on your phone. If it doesn't try sending yourself the link to your app over email (to your own inbox, and open the link on your phone), mine looks like this: exp://5c-gp9.[accountname].my-new-project.exp.direct:80
I had this problem when my phone was connected via wifi and my destop was connected via LAN. I changed the connection mode in the browser window to tunnel, reloaded the expo app and was able to connect to my application. This was on my iOS device.
I got this issue on Win 10 with android and solved by the adding a firewall rule for my device (device IP as remote). I was using ESET NOD antivirus and it was block the device from accessing node.exe
for local testing e.g comnputer , simulator
expo start
for Real mobile device
expo start --tunnel
I'm on windows 10.
My network was set to public, but it needed to be private - so that it could safely expose devices like printers and in this case the Expo connection.
I went in my Wifi setting and clicked on Private:
If you are using windows 10 do the following. It worked for me
1. Check if your phone and pc are sharing the same router/hotspot/wifi connection. better still you can connect your pc to your phone hotspot.
2. Configure the network you are using as private. you can do so using this link https://www.digitalcitizen.life/how-set-your-networks-location-private-or-public-windows-10/
3. Off your windows defender and any other antivirus. The windows and other antivirus defender acts as a firewall and prevents expo client from working.
It will work I assure you
I was having the same issue, the solution is easy just make a Firewall rule that allows connection from your mobile device to your PC. open port number 19000 and in the IP put your phone IP address then allow the connection TCP/UDP in both directions, and everything will be OK.
Usually, you can edit the Firewall rules through your antivirus installed on your PC.
Careful don't disable your firewall, it will hurt you a lot.
This problem is due to the sdk version of the project is not compatible with the expo go ,so go to app.json of your project and edit to the latest version of sdk
hai every one i am trying to run the react-native android app in device then it throws an error like as mentioned below
can any one please give me suggestions for how to solve this error,Any help much appreciated
Try following the steps on the guide page.
You may have to set the address of your dev server.
Configure your app to connect to the local dev server via Wi-Fi
Make sure your laptop and your phone are on the same Wi-Fi network.
Open your React Native app on your device. You can do this the same way you'd open any other app.
You'll see a red screen with an error. This is OK. The following steps will fix that.
Open the Developer menu by shaking the device or running adb shell input keyevent 82 from the command line.
Go to Dev Settings.
Go to Debug server host for device.
Type in your machine's IP address and the port of the local dev server (e.g. 10.0.1.1:8081). On Mac, you can find the IP address in System Preferences / Network. On Windows, open the command prompt and type ipconfig to find your machine's IP address (more info).
Go back to the Developer menu and select Reload JS.
I have installed the apprtc python application in my linux server, its ok when trying to connect between browsers, but when I'm trying to create peer2peer with the apprtcdemo app for android, I get this error in my channel.html "the provided token is no valid", I see that when I change the android app url https://apprtc.appspot.com/?r= to a custom domain , its weird because if I just use the first url it works...
Could someone help me with that?
Tks very much
There are two android apk available for WebRTC, appRtcDemo and webRtcDemo. appRtcDemo apk can be used for android device to browser connectivity. You need to provide room id to connect to one room. If you are the room initiator then you have to enter -1.
If you want to connect two android device then you have to compile and install webRtcDemo apk. This apk interface provide place to enter ip address of another device and vice versa then both device will be connected.
Please go through http://www.webrtc.org/reference/getting-started for more information. Both the apks i've compiled and installed and checked how it works.